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Electric machine with Q-offset grooved interior-magnet rotor and vehicle

  • US 10,547,222 B2
  • Filed: 12/07/2018
  • Issued: 01/28/2020
  • Est. Priority Date: 10/16/2008
  • Status: Active Grant
First Claim
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1. A rotor for a rotating electrical machine, comprising:

  • a plurality of magnets; and

    a plurality of magnetically-assisted salient pole members provided at a core portion between the magnets, whereinthe rotor includes insert holes for the magnets;

    edges of the magnets and the insert holes form magnetic air gaps at regions overlapped with the magnetically-assisted salient pole members;

    the magnetic air gaps include first magnetic air gaps and second magnetic air gaps, each of the second magnetic air gaps being opposite to the first magnetic air gaps across a q-axis passing through a salient pole center of each of the magnetically-assisted salient pole members and being formed smaller than the first magnetic air gaps at the regions overlapped with the magnetically-assisted salient pole members; and

    the magnets provided with the first magnetic air gaps at both ends along a circumferential direction and the magnets provided with the second magnetic air gaps at both ends along a circumferential direction are alternately arranged in the rotor.

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